Analysis

  • max time kernel
    148s
  • max time network
    151s
  • platform
    windows11-ltsc_2024_x64
  • resource
    win11ltsc2024-20260706-en
  • resource tags

    arch:x64arch:x86image:win11ltsc2024-20260706-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
  • submitted
    08/07/2026, 18:15

General

  • Target
    ScreenConnect.ClientSetup.msi
  • Size 9.8MB
  • Sample260708-wv78psew3j
  • SHA256 935b241dceba704b49ce9144f656550453d2795fdd5191c10597b6b16f32bf53
  • MD5 SHA1 SHA512 SSDEEP TLSH

Malware Config

Signatures

  • Badlisted process makes network request 2 IoCs

    Network request originating from process or tool commonly abused by malware.

  • Sets service image path in registry 3 TTPs 1 IoCs

    This determines the executable launched when a service starts. It can be used to establish persistence.

  • ConnectWise ScreenConnect remote access tool

    ConnectWise ScreenConnect is a remote desktop tool that can be used as a backdoor.

  • Event Triggered Execution: Component Object Model Hijacking 1 TTPs

    Adversaries may establish persistence by executing malicious content triggered by hijacked references to Component Object Model (COM) objects.

  • Executes dropped EXE 3 IoCs
  • Loads dropped DLL 42 IoCs
  • Enumerates connected drives 3 TTPs 46 IoCs

    Attempts to read the root path of hard drives other than the default C: drive.

  • Boot or Logon Autostart Execution: Authentication Package 1 TTPs 1 IoCs

    Suspicious Windows Authentication Registry Modification.

  • Drops file in System32 directory 9 IoCs
  • Drops file in Program Files directory 16 IoCs
  • Drops file in Windows directory 17 IoCs
  • Event Triggered Execution: Installer Packages 2 TTPs 1 IoCs
  • System Location Discovery: System Language Discovery 1 TTPs 7 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

  • Checks SCSI registry key(s) 3 TTPs 5 IoCs

    SCSI information is often read in order to detect sandboxing environments.

  • Checks processor information in registry 2 TTPs 2 IoCs

    Processor information is often read in order to detect sandboxing environments.

  • Modifies data under HKEY_USERS 13 IoCs
  • Modifies registry class 37 IoCs
  • Suspicious behavior: EnumeratesProcesses 8 IoCs
  • Suspicious use of AdjustPrivilegeToken 64 IoCs
  • Suspicious use of FindShellTrayWindow 7 IoCs
  • Suspicious use of SendNotifyMessage 5 IoCs
  • Suspicious use of SetWindowsHookEx 5 IoCs
  • Suspicious use of WriteProcessMemory 9 IoCs
  • Uses Volume Shadow Copy service COM API

    The Volume Shadow Copy service is used to manage backups/snapshots.

Processes

  • C:\Windows\system32\msiexec.exe
    msiexec.exe /I C:\Users\Admin\AppData\Local\Temp\ScreenConnect.ClientSetup.msi
    1⤵
    • Badlisted process makes network request
    • Enumerates connected drives
    • Event Triggered Execution: Installer Packages
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of FindShellTrayWindow
    • Suspicious use of SetWindowsHookEx
    PID:2184
  • C:\Windows\system32\msiexec.exe
    C:\Windows\system32\msiexec.exe /V
    1⤵
    • Enumerates connected drives
    • Boot or Logon Autostart Execution: Authentication Package
    • Drops file in Program Files directory
    • Drops file in Windows directory
    • Modifies data under HKEY_USERS
    • Modifies registry class
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:2744
    • C:\Windows\syswow64\MsiExec.exe
      C:\Windows\syswow64\MsiExec.exe -Embedding 22A5427AF2F01B223F78F67856B03CE8 C
      2⤵
      • Loads dropped DLL
      • System Location Discovery: System Language Discovery
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:3068
      • C:\Windows\SysWOW64\rundll32.exe
        rundll32.exe "C:\Users\Admin\AppData\Local\Temp\MSI96F7.tmp",zzzzInvokeManagedCustomActionOutOfProc SfxCA_240752640 1 ScreenConnect.InstallerActions!ScreenConnect.ClientInstallerActions.FixupServiceArguments
        3⤵
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        PID:5412
      • C:\Windows\SysWOW64\rundll32.exe
        rundll32.exe "C:\Users\Admin\AppData\Local\Temp\MSI9C37.tmp",zzzzInvokeManagedCustomActionOutOfProc SfxCA_240753765 10 ScreenConnect.InstallerActions!ScreenConnect.ClientInstallerActions.CheckMsiMotw
        3⤵
        • Badlisted process makes network request
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        PID:2816
      • C:\Windows\SysWOW64\rundll32.exe
        rundll32.exe "C:\Users\Admin\AppData\Local\Temp\MSIA476.tmp",zzzzInvokeManagedCustomActionOutOfProc SfxCA_240756046 17 ScreenConnect.InstallerActions!ScreenConnect.ClientInstallerActions.CheckMsiFileName
        3⤵
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        PID:1224
    • C:\Windows\system32\srtasks.exe
      C:\Windows\system32\srtasks.exe ExecuteScopeRestorePoint /WaitForRestorePoint:2
      2⤵
        PID:1408
      • C:\Windows\syswow64\MsiExec.exe
        C:\Windows\syswow64\MsiExec.exe -Embedding 2298084972FEB39B39C32463B4BE4BC6
        2⤵
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        • Suspicious use of SetWindowsHookEx
        PID:3532
      • C:\Windows\syswow64\MsiExec.exe
        C:\Windows\syswow64\MsiExec.exe -Embedding 9A16C1B8A24BD151B55247000E73C542 E Global\MSI0000
        2⤵
        • Loads dropped DLL
        • Drops file in Windows directory
        • System Location Discovery: System Language Discovery
        • Suspicious use of SetWindowsHookEx
        PID:2572
    • C:\Windows\system32\vssvc.exe
      C:\Windows\system32\vssvc.exe
      1⤵
      • Checks SCSI registry key(s)
      PID:6044
    • C:\Program Files (x86)\ScreenConnect Client (5febaad734d52e90)\ScreenConnect.ClientService.exe
      "C:\Program Files (x86)\ScreenConnect Client (5febaad734d52e90)\ScreenConnect.ClientService.exe" "?e=Access&y=Guest&h=instance-hukx2u-relay.screenconnect.com&p=443&s=ab054519-7100-4561-9003-07d259f9879a&k=BgIAAACkAABSU0ExAAgAAAEAAQD9%2buXKk6jUDAbE8o9ayqRy%2bJZaUvD3Dq9OMdRtrj0WKrffLRJ%2bF3WBiVZqALJNgTKv7zGrBL84jNCwObf%2fE%2b51VNuHxa8R%2f%2fyB6bygUCC1gArJ1D60kaGR%2bsnFg6%2fuwPZBmLEGx60x7ICa8n4q8N68LFeep0BbTupOfU7jzosb8VsJia%2bCmCkXdqklJ5HX5o7ipf9n13gz8GDfe0QFOeLOs4z0hGLiLEM3TcYPKLfhPyPCcLZhjPXXG9VEMOnbnFVx8KFYbGGF6AbwzEpRATXFbvr%2fAzGE0o%2bcwhWCt1uUkC0ajtZcXMnQiv5YDNxPZhXLiFZ5LgJ%2fBIATjEV%2fPBmm"
      1⤵
      • Sets service image path in registry
      • Executes dropped EXE
      • Loads dropped DLL
      • Drops file in System32 directory
      • System Location Discovery: System Language Discovery
      • Modifies data under HKEY_USERS
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of WriteProcessMemory
      PID:1712
      • C:\Program Files (x86)\ScreenConnect Client (5febaad734d52e90)\ScreenConnect.WindowsClient.exe
        "C:\Program Files (x86)\ScreenConnect Client (5febaad734d52e90)\ScreenConnect.WindowsClient.exe" "RunRole" "c1b822a1-6b0b-40c8-b2bc-e39f5d889395" "User"
        2⤵
        • Executes dropped EXE
        • Suspicious use of FindShellTrayWindow
        • Suspicious use of SendNotifyMessage
        PID:5444
      • C:\Program Files (x86)\ScreenConnect Client (5febaad734d52e90)\ScreenConnect.WindowsClient.exe
        "C:\Program Files (x86)\ScreenConnect Client (5febaad734d52e90)\ScreenConnect.WindowsClient.exe" "RunRole" "94992e73-9188-4ea9-af6b-378fd0ada524" "System"
        2⤵
        • Executes dropped EXE
        • Checks processor information in registry
        • Modifies data under HKEY_USERS
        PID:5628

    Network

          MITRE ATT&CK Enterprise v16

          Replay Monitor

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          Downloads

          e59ff76.rbs

          • Path C:\Config.Msi\e59ff76.rbs
          • Size 214KB
          • SHA256 6ff3c14aa82abc53593a82771f9db4a4d5622a71422d681be7541dffa902765f
          • MD5 SHA1 SHA512 SSDEEP TLSH

          Client.en-US.resources

          • Path C:\Program Files (x86)\ScreenConnect Client (5febaad734d52e90)\Client.en-US.resources
          • Size 64KB
          • SHA256 a90983b3d26f9e6bb472663b84d13254349f62b0ad4c667fd76b3edd270240b2
          • MD5 SHA1 SHA512 SSDEEP TLSH

          Client.resources

          • Path C:\Program Files (x86)\ScreenConnect Client (5febaad734d52e90)\Client.resources
          • Size 6KB
          • SHA256 bd34378ad99f7609fa0c7c8edde6337c738a61d288863015629329806a1cc728
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Client.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (5febaad734d52e90)\ScreenConnect.Client.dll
          • Size 412KB
          • SHA256 4010ea184982e71ad71e76b43266488c954f665324b89ef042cea9e463a60c9d
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.ClientService.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (5febaad734d52e90)\ScreenConnect.ClientService.dll
          • Size 91KB
          • SHA256 6e6aa42b107d3e82b7b7dc18a75eee3f09e9f268788c0a7edbbc617152adf178
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.ClientService.exe

          • Path C:\Program Files (x86)\ScreenConnect Client (5febaad734d52e90)\ScreenConnect.ClientService.exe
          • Size 93KB
          • SHA256 a94ecccb5b88e3860d619fbb3b87ff4af6448240ab65b89d610f348d75e793f2
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Core.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (5febaad734d52e90)\ScreenConnect.Core.dll
          • Size 577KB
          • SHA256 eedbd9ba4755f238af397c71b575082e18a31eabacc22abb4949f92fe991e169
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Windows.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (5febaad734d52e90)\ScreenConnect.Windows.dll
          • Size 1.7MB
          • SHA256 305663a05c77c8058569a976db740aa2f20b66583f0381059633b628376570fc
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.WindowsAuthenticationPackage.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (5febaad734d52e90)\ScreenConnect.WindowsAuthenticationPackage.dll
          • Size 254KB
          • SHA256 a5b8f0070201e4f26260af6a25941ea38bd7042aefd48cd68b9acf951fa99ee5
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.WindowsClient.exe

          • Path C:\Program Files (x86)\ScreenConnect Client (5febaad734d52e90)\ScreenConnect.WindowsClient.exe
          • Size 676KB
          • SHA256 f49ca44ae19ec33053d76aeca7136193095b6583888a0be063b8120c3c9226c7
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.WindowsClient.exe.config

          • Path C:\Program Files (x86)\ScreenConnect Client (5febaad734d52e90)\ScreenConnect.WindowsClient.exe.config
          • Size 266B
          • SHA256 87c640d3184c17d3b446a72d5f13d643a774b4ecc7afbedfd4e8da7795ea8077
          • MD5 SHA1 SHA512 TLSH

          ScreenConnect.WindowsCredentialProvider.dll

          • Path C:\Program Files (x86)\ScreenConnect Client (5febaad734d52e90)\ScreenConnect.WindowsCredentialProvider.dll
          • Size 837KB
          • SHA256 ce75ee1188726b49d46477166faac6f8715ca1aa4afc5b8a687fcbfcd541c0c2
          • MD5 SHA1 SHA512 SSDEEP TLSH

          system.config

          • Path C:\Program Files (x86)\ScreenConnect Client (5febaad734d52e90)\system.config
          • Size 972B
          • SHA256 07714cb7d0feb7c98835e3b742d57839b4f6502c054037a3e386d4531b897a87
          • MD5 SHA1 SHA512 TLSH

          MSI96F7.tmp

          • Path C:\Users\Admin\AppData\Local\Temp\MSI96F7.tmp
          • Size 1.1MB
          • SHA256 18bacfd2a7c95800b6279cb8731bf03c8bbb526f5bc3790254a8e06d7ceee8ad
          • MD5 SHA1 SHA512 SSDEEP TLSH

          Microsoft.Deployment.WindowsInstaller.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSI96F7.tmp-\Microsoft.Deployment.WindowsInstaller.dll
          • Size 172KB
          • SHA256 3e54286e348ebd3d70eaed8174cca500455c3e098cdd1fccb167bc43d93db29d
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Core.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSI96F7.tmp-\ScreenConnect.Core.dll
          • Size 567KB
          • SHA256 15fec18d3a8990cdb540897ede61227353165668048c001164fcd22233cc8390
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.InstallerActions.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSI96F7.tmp-\ScreenConnect.InstallerActions.dll
          • Size 24KB
          • SHA256 c1142cc3ae09a7d3b5392539c29cbeb585543a38c93e37e55d82cbe0bb56d588
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ScreenConnect.Windows.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSI96F7.tmp-\ScreenConnect.Windows.dll
          • Size 1.7MB
          • SHA256 ae3005e1ca932eccde09c479fde2ecf8ea2feeb908dec4f0c830eab671276454
          • MD5 SHA1 SHA512 SSDEEP TLSH

          CustomAction.config

          • Path C:\Users\Admin\AppData\Local\Temp\MSI9C37.tmp-\CustomAction.config
          • Size 234B
          • SHA256 7027b69ab6ebc9f3f7d2f6c800793fde2a057b76010d8cfd831cf440371b2b23
          • MD5 SHA1 SHA512 TLSH

          ScreenConnect.WindowsInstaller.dll

          • Path C:\Users\Admin\AppData\Local\Temp\MSI9C37.tmp-\ScreenConnect.WindowsInstaller.dll
          • Size 137KB
          • SHA256 7c27380976a5befc5a947e129eb464123f46d06cf0eb7f984ced921f36e1d0e7
          • MD5 SHA1 SHA512 SSDEEP TLSH

          MSI746.tmp

          • Path C:\Windows\Installer\MSI746.tmp
          • Size 202KB
          • SHA256 3cff4ac91288a0ff0c13278e73b282a64e83d089c5a61a45d483194ab336b852
          • MD5 SHA1 SHA512 SSDEEP TLSH

          e59ff75.msi

          • Path C:\Windows\Installer\e59ff75.msi
          • Size 9.8MB
          • SHA256 935b241dceba704b49ce9144f656550453d2795fdd5191c10597b6b16f32bf53
          • MD5 SHA1 SHA512 SSDEEP TLSH

          kdh5o2pc.newcfg

          • Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\ScreenConnect Client (5febaad734d52e90)\kdh5o2pc.newcfg
          • Size 881B
          • SHA256 83b36e69af365ac4a3cfd1466b046c05329a705ad030eb194514849f322e16de
          • MD5 SHA1 SHA512 TLSH

          rbixtoar.newcfg

          • Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\ScreenConnect Client (5febaad734d52e90)\rbixtoar.newcfg
          • Size 683B
          • SHA256 970941efc9990c13b77fff91bf81c261afd3afd1121475598ee1a78f80ca838e
          • MD5 SHA1 SHA512 TLSH

          user.config

          • Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\ScreenConnect Client (5febaad734d52e90)\user.config
          • Size 520B
          • SHA256 4e30db65a7363f058a88ff1587726ce972f026e71adea151fdf0e40cc2fd05fe
          • MD5 SHA1 SHA512 TLSH

          {694e8721-9e15-453f-94b3-4331ca3affec}_OnDiskSnapshotProp

          • Path \??\Volume{9f7bbf2a-0000-0000-0000-d08302000000}\System Volume Information\SPP\OnlineMetadataCache\{694e8721-9e15-453f-94b3-4331ca3affec}_OnDiskSnapshotProp
          • Size 6KB
          • SHA256 46a5d6151cf3972782ab9c9023dea5729310f21f28ec60ab6cfcd768ae39bc47
          • MD5 SHA1 SHA512 SSDEEP TLSH

          memory/1712-188-0x00000000040E0000-0x00000000041B6000-memory.dmp

          memory/1712-164-0x0000000003D90000-0x0000000003DE0000-memory.dmp

          memory/1712-183-0x0000000003DE0000-0x0000000003E4C000-memory.dmp

          memory/1712-184-0x0000000003EF0000-0x0000000003F82000-memory.dmp

          memory/1712-151-0x0000000003BE0000-0x0000000003D90000-memory.dmp

          memory/1712-186-0x0000000003B90000-0x0000000003BD1000-memory.dmp

          memory/1712-147-0x0000000003990000-0x0000000003A24000-memory.dmp

          memory/1712-141-0x0000000001430000-0x000000000144A000-memory.dmp

          memory/2816-64-0x0000000003D60000-0x0000000003D88000-memory.dmp

          memory/5412-34-0x0000000006340000-0x00000000068FA000-memory.dmp

          memory/5412-33-0x0000000005BD0000-0x0000000005D80000-memory.dmp

          memory/5412-29-0x0000000005980000-0x0000000005A14000-memory.dmp

          memory/5412-25-0x0000000003850000-0x000000000385C000-memory.dmp

          memory/5412-21-0x0000000003870000-0x000000000389E000-memory.dmp

          memory/5444-207-0x0000000000FC0000-0x000000000106E000-memory.dmp

          memory/5444-208-0x0000000003200000-0x000000000326C000-memory.dmp

          memory/5444-209-0x000000001C0B0000-0x000000001C144000-memory.dmp

          memory/5444-210-0x000000001C300000-0x000000001C4B0000-memory.dmp

          memory/5444-211-0x0000000001900000-0x000000000191A000-memory.dmp

          memory/5444-212-0x000000001C640000-0x000000001C7C8000-memory.dmp